Concrete insert



C. TOMKINSON- CONCRETE INSERT. APPLICATION FILED JUNE 8, 1921.

1,422, 3 Patented July 11, 1922 a n as e it, 1 fi s3 FEQE.

CHARLES C. TQIIIKINSON, OF PLAINFIELD, NYE-W JERSEY, ASSIGNOR TO J.EDWARD OGDEN, 01* MOUNTAINVIBLE, TO'WN OF CORNWALL, NEW YORK.

CONCRETE INSERT.

Application filed June 8,

To all whom it may concern I Be it known that I, CrrAnLns- C. TOMKIN-device of this character that shall be simple and rugged in constructionand capable of manufacture at minimum cost.

The insert comprises a bar having a threaded hole which, on one sideopens into a compartment formed by a piece of sheet ietal bent intoshape around and secured to the bar, the compartment forming a pocketinto which the end of the bolt which passes through the threaded holemay project. The various features of novelty of the invention willappear from the detailed clescription thereof taken in connection withthe accompanying drawing forming part of this specification.

In the drawing Fig. 1 is a side elevation of a concrete insert embodyingthe preferred form of the invention.

Fig. 2 is a rear elevation of the insert shown in Fig. 1.

Fig. 3 is a plan view showing the blank from which the housing is made.

Fig. at is a face or bottom plan view of the insert shown in Figs. 1 and2.

Fig. 5 is a side elevation of a modified form of concrete insert.

Like characters of reference indicate like parts throughout the severalviews.

10 indicates the bar which forms the body of insert. The bar has a ledge11 through which extends a threaded hole 12. This ledge is surrounded bya housing I-I whereby there is provided a pocket or compartment intowhich the end of a bolt may extend after passing through the threadedhole. The housing is built up from a single piece of sheet metal plate18 which is laid out as shown in Fig. 3. The tail or part 14 and sidesor wings 15 and 16 are bent up at right angles to the central portion 17whereby a box-like member is formed,the part 14 forming the roof or top,the part 17 the end, and the parts l5 and 16 the sides of the housing.

Specification of Letters Patent.

Patented July ii, i922.

1921. Serial No. 475,843.

The housing is secured to the bar in any desired manner, such as byriveting, spot welding or by means of the wings 15 and 16 which areprovided with extensions 15 and 16 which are bent partly around the baras clearly shown in the drawing. Upward displacement of the housing iseffectually prevented by the extensions which hug the curve ofthe bar.Downward displacement of the housing is prevented in any desired manner,as for example, by means of fingers 18 whichare stamped out of the plate"and which extend over the ledge 11 as clearly indicated in thedrawings. The bottom or face of the ledge 11 is exposed as will now bereadily understood to permit phei insertion of a bolt into the threaded10 e.

In order to permit the insert to be positioned in the mold into whichconcrete is to be poured, nailin tabs 19 having slots 20 project fromthe side walls 15 and 16. As shown in the drawings these tabs are bentat right angles to the side walls 15, 16 and are flush with the face ofthe ledge.

The bar 10 has a foot Or anchor 25 which preferably overlies the ledge11, this arrangement offering a-good anchorage for the concrete-embeddedinsert and a means for engaging the reinforcement therein.

As shown in Fig. 5, the bar may be bent into the form of a stirrup 30 atthe bottom of which is the threaded hole. The housing is slightlymodified being built up of a pair of side plates 31. These plates are,however, secured to the bar by means of fingers 32 and flanges orextensions 33 and laterally extending nailing tabs 34 are also provided.

From the above it will be seen that I have provided a heavy-dutyconcrete insert which is simple in construction and which may bemanufactured at minimum cost.

While I have described the invention with considerable particularity, Idesire it to be distinctly understood that I intend no limitation otherthan may be imposed by the appended claims.

What I claim is:

1. A concrete insert comprising a bar having a ledge through which thereis an opening, a housing extending over the opening, said housingcomprising a pair of side walls and a roof, flanges bent over from thewalls into contact with the bar whereby relative displacement betweenthe bar and housing for preventing displacement of said partsin theopposite direction.

2. A concrete insert comprising a bar having a ledge through which thereis an opening, a housing extending over the opening, said housingcomprising a pair of side walls and a roof, flanges bent over from thewalls into contact with the bar whereby relative displacement betweenthe bar and housing in one direction is prevented, and fingers stampedout from the side walls to overlie the ledge. V

3. A concrete insert comprising a solid bar having a ledge through whichthere is an opening, a housing extending over the opening, said housingcomprising a sheet metal plate bent into stirrup form and straddling thebar at theledge, fingers stampedout of the sides of the stirrup intoengagement with the opposite side of the ledge and bar, and a roofmember bent over from the bottom of the stirrup.

4:. A concrete insert comprising a bar having a ledge through whichthere is an opening, a housing extending over the opening,

said-housing comprising a sheet metal plate bent into stirrup form andstraddling the bar at the ledge, fingers stamped out of the sides of thestirrup and overlying the ledge, flanges bent .over from the free endsof the stirrup into engagement with the opposite side of the ledge andbar, and nailing tabs projecting from the sides of the stirrup.

5. A concreteinsert comprising abar having a ledge through which extendsathreaded hole, a housing overlying the hole at one side ofthe ledge,means stamped out from the housing to extend over the ledge, flangesbent over from the housinginto contact with the opposite side of theledge, and nailing tabs extending from the housing ad jacent the exposedface of the ledge.

In witness whereof, I have hereunto set myhand this 18th day of May1921.

CHARLES C. TOMKINSON.

Witness:

I. B. MOORE.

